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The LAB Color Mode offers a slightly different way of working with color, which can result in beautifully saturated tones. Here it works wonders on the delicate reds and yellows in this sunrise, giving the colors a richness that isn’t possible with saturation tweaks.
Most images start off in RGB mode, which stands for Red, Green and Blue. Combinations of these three color values result in millions of different shades. However, when you switch from RGB to LAB, Photoshop separates brightness and color into different channels. The Lightness channel holds all the detail, while the A and B channels contain all the color information – hence the name L-A-B.
Splitting up the image data in this way gives you precise control over colors and saturation, without…